Children's pyramids that need to be strung on an axis in order to reduce the diameter of the rings gave the idea of u200bu200bcreating the Hoop Stack game. But in our case, all the rings are of the same diameter and are already placed on the axes. The task is to arrange for them to sort and distribute the rings according to the colors on free sticks. Remember that you cannot put rings of different colors in one place. There are many levels and they become more difficult as you progress. There will be more different colored rings and places where they can be placed. Only after complete order on the field, you can move on to a new task.